Note: I find out that the crash is caused by Mecanim Track Animators Transition Duration and the blue line which represents animation end (blue_line.jpg). When Animators Transition Duration is not enough until it reaches the blue line, Unity crashes. Also, if the blue line is set to time before Animators finish their duration, it also causes the crash.
Furthermore, Unity doesn't crash, if after click Play button in the CinemaDirector window, Unity loses the focus (turn on the other program or a browser).